Steel Coil Order Feasibility Checker

Check steel coil order specifications for GI, GL, PPGI, PPGL, Zn-Al-Mg and tinplate. Review dimensions and order requirements with Hengze Steel.

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Hengze Steel · Material Yield & Cost Planning

Coil-to-Usable-Material Cost Calculator

Estimate usable material yield and the real cost of a processed steel coil. Enter your coil dimensions, purchase price, trimming allowance and processing losses to compare cost per usable tonne, kilogram and square metre.

Material & coil details

Select the product and enter the known coil data.

Product type Currency How will you enter the coil data?

Known coil weight

Net coil weight tonnes (t) Use the measured net weight from the scale or packing list when available.

Coil diameter method

Outside diameter mm Inside diameter / core mm

Assumes a tightly wound circular coil with no significant air gaps.

Known strip length

Strip length m

Coil width mm Nominal thickness mm Material density g/cm³Reference defaults: steel 7.85; aluminum 2.70. Used for dimension-based weight and area estimates.

For the most reliable result, use the actual net coil weight. A dimensional estimate does not separately model coating mass, paint film, winding gaps or packaging.

Purchase & processing costs

Use your own quoted rates; the tool does not fetch live market prices.

Coil purchase price USD / tonneRequired to calculate cost per usable tonne, kg and m². Processing cost USD / input tonneSlitting, cut-to-length or other conversion cost. Freight & handling USD / coil Other costs USD / coilOptional: packaging, inspection, storage or other allocated costs.

Yield, trimming & scrap

Enter expected losses for your own processing line.

Edge trim per side mmTrim loss is estimated from the share of width removed. Process loss %Applied after edge trimming. Rejected / defective material %Applied after process loss. Loss recovered as scrap %Share of total lost weight that can be sold as scrap. Scrap recovery value USD / scrap tonneSet to 0 when scrap has no resale value or is not credited to this job.

The calculator applies trim, process loss and rejection sequentially. Scrap credit is deducted only for the share of estimated losses marked as recoverable.

Planning estimate only. Replace example dimensions and loss assumptions with actual order and processing data. Confirm weights, coating specifications, usable yield and commercial costs with the supplier or processor before making a purchase or production decision.

Estimated unit cost

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per tonne of usable material

Enter your coil purchase price to calculate usable-material costs.

Usable material—tonnes after estimated losses

Material yield—usable weight ÷ input weight

Usable area—estimated square metres

Total material loss—trim + process + rejected

Cost breakdown

Raw coil material—

Processing—

Freight & handling—

Other costs—

Scrap recovery credit—

Estimated net batch cost—

Usable-material unit costs

Cost per usable tonne—

Cost per usable kg—

Cost per usable m²—

Update the inputs to calculate your estimated yield.

How the calculation works

Estimated coil weight is taken from your entered net weight, or derived from coil dimensions and density.

Trim loss % = (2 × trim per side) ÷ coil width × 100

Usable weight = input weight × (1 − trim loss) × (1 − process loss) × (1 − reject rate)

Net batch cost = coil cost + processing + freight + other costs − scrap credit

Unit cost = net batch cost ÷ usable output

For area, the tool estimates usable weight ÷ (nominal thickness × entered density). This is approximate for coated or painted products.

How to Calculate Usable Steel Coil Cost

A steel coil’s purchase price does not always represent the final cost of usable material. Edge trimming, slitting or cut-to-length losses, rejected sections, processing charges, freight and scrap recovery can all affect the cost of saleable output. This calculator combines the values you enter to estimate material yield and the batch cost allocated to usable output.

Which coil products can I calculate?

The calculator supports galvanized steel coil (GI), Galvalume steel coil (GL), prepainted galvanized steel coil (PPGI), prepainted Galvalume steel coil (PPGL), Zn-Al-Mg coated steel, ETP / SPTE tinplate and prepainted aluminum coil. Choose the closest product type, then enter your actual dimensions, density, quoted price and processing assumptions.

How is usable material yield calculated?

Estimated usable weight is calculated after sequentially applying the edge-trim allowance, process-loss percentage and rejected-material percentage to the input coil weight. The resulting yield is usable weight divided by input weight. Use actual production records to set loss assumptions for your line.

How does scrap recovery affect the unit cost?

The calculator subtracts a scrap credit based on the estimated total loss, the percentage of that loss that can be recovered, and the scrap value per tonne. If scrap is not sold or credited to the job, leave the recovery percentage or scrap value at zero.

Are the calculated costs suitable for a final quotation?

No. Results are planning estimates, not a supplier quotation or production guarantee. Confirm the actual net coil weight, coating and paint specifications, thickness tolerances, yield, freight terms, processing charges and scrap value before committing to an order.